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SN400B

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SN400A SN400C
#SN400B

Description

China CNS SN400B China Taiwan Structural steel and SN400B Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: SN400B
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel SN400B CNS China China Taiwan Structural steel
SMA490BW
SMA490CW
SMA490AP
SMA490BP
SMA490CP
SMA570W
SMA570P
SPA-H
SPA-C
SN400A

Chemical composition(mass fraction)(wt.%) of the SN400B

C(％) Si(％) Mn(％) P(％) S(％) Other(%)
0.20 0.35 0.60-1.40 0.03 0.015 CE Max 0.36

Mechanical Properties of steel grade SN400B

Yield
Rp0.2 (MPa)		 Tensile
Rm (MPa)		 Impact
KV/Ku (J)		 Elongation
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell hardness (HBW)
469 (≥) 625 (≥) 22 43 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 143

Physical Properties of steel grade SN400B

Temperature
(°C)		 Modulus of elasticity
(GPa)		 Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)		 Specific thermal capacity
(J/kg·°C)		 Specific electrical resistivity
(Ω mm²/m)		 Density
(kg/dm³)		 Poisson’s coefficient, ν
33 - -     0.42 -  
135 353 - 42.3 231   -  
238 - 13 23.2   323 234

Heat Treatment of steel grade SN400B

Heat treated : 1528°C - 1115°C

Technological Curves of steel grade SN400B

Cross Reference Table (Equivalent Grade) of SN400B

Grade Standard Country Application
SN400B CNS China China Taiwan Structural steel
SN400A SN400C
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Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

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